diff --git a/android/build.gradle b/android/build.gradle
index 3b7c1cb..96c8c73 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         buildToolsVersion = "28.0.2"
         minSdkVersion = 16
         compileSdkVersion = 28
-        targetSdkVersion = 27
+        targetSdkVersion = 28
         supportLibVersion = "28.0.0"
     }
     repositories {
@@ -20,8 +20,8 @@ buildscript {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 27
-    buildToolsVersion "27.0.3"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         minSdkVersion 16
@@ -38,6 +38,7 @@ allprojects {
     repositories {
         mavenLocal()
         google()
+        jcenter()
         mavenCentral()
         maven {
             // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
@@ -52,4 +53,4 @@ dependencies {
     implementation 'com.jakewharton.timber:timber:4.7.1'
     implementation "com.google.code.gson:gson:2.8.5"
 }
-  
\ No newline at end of file
+  
diff --git a/android/gradlew b/android/gradlew
old mode 100644
new mode 100755
diff --git a/index.d.ts b/index.d.ts
index 55ac412..aef0a23 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -767,4 +767,4 @@ declare module 'launchdarkly-react-native-client-sdk' {
         unregisterAllFlagsListener(listenerId: string): void;
     }
   }
-  
\ No newline at end of file
+